package com.by.entity;

/**
 * @author LittleDesire
 * @description
 * @date 2022-03-22 周二 14:12
 * @since 17
 */
public class Db {
    public void save() {
        System.out.println("数据保存");
    }
    public void add() {
        System.out.println("z增加");
    }
    public void del() {
        System.out.println("删除");
    }
}
